Conventions

In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "This was accomplished by placing the application in a folder called VDIOnly and hiding this folder."

A block of code is set as follows:

select UserID, StartDate, MachineID from [MonitorData].[Session]
where userID = 2
order by StartDate DESC

Any command-line input or output is written as follows:

# cp /usr/src/asterisk-addons/configs/cdr_mysql.conf.sample
     /etc/asterisk/cdr_mysql.conf

New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in the text like this: "Click on Retrieve Attributes to verify."

Note

Warnings or important notes appear in a box like this.

Tip

Tips and tricks appear like this.